Researchers found homemade play-putty can effectively capture electrocardiogram (ECG) signals at a level comparable to commercially available electrodes. The play-putty is made with a simple mix of flour, water, salt, cream of tartar and vegetable oil—but the potential is much more than one may expect. Image courtesy of the University of Massachusetts Amherst, Kireev et al.
![A majority of medical devices involved in Class I recalls were never required by the U.S. Food and Drug Administration (FDA) to undergo premarket or postmarket clinical testing, according to new research published in Annals of Internal Medicine.[1]](/sites/default/files/styles/top_stories/public/2024-09/istock-1209664264.jpg.webp?itok=gQInU1vO)
